\section{Introduction}
The project 'RF communication \& Near Field Communication – Mingling In' of the study Electrical Engineering at the University of Twente investigates the possibility of eavesdropping a Near Field Communication (NFC) transmission. NFC is a technique used in Radio Frequency Idenfitication (RFID). RFID is a technology that allows identification by using tiny devices called tags that contain an identification number and possibly some data. These devices can contactlessly  be read out by an RFID reader allowing for applications like the storage of digital information on a passport or identification of goods in a warehouse.

During this project an eavesdropper device was created that was capable of eavesdropping on the near field communication between a tag used as a contactless key and a reader. This report discusses the research done that was necessary to create the eavesdropper, the final design, the steps to this design and the planning and task division of the project.